No abstract

Similar to other organs, the retina relies on tightly regulated perfusion and oxygenation. Previous studies have demonstrated that retinal blood flow is affected in a variety of eye and systemic diseases, including diabetic retinopathy, age-related macular degeneration, and glaucoma. Although measurement of peripheral oxygen saturation has become a standard clinical measurement through the development of pulse oximetry, developing a noninvasive technique to measure retinal oxygen saturation has proven challenging, and retinal oximetry technology currently remains inadequate for reliable clinical use. Here, we review current strategies and approaches, as well as several newer technologies in development, and discuss the future of retinal oximetry.

Purpose: To describe relaxing nasal retinotomy as a technique to achieve closure of a recurrent macular hole.Methods: A patient with juxtafoveal telangiectasia presented with recurrent macular hole after primary vitrectomy and internal limiting membrane peel. During repeat surgery, a superonasal retinotomy was performed to allow for release of tangential traction contributing to the macular hole.Results: Intraoperative ocular coherence tomography demonstrated decrease in size of the macular hole immediately after retinotomy. At follow-up, both the macular hole and retinotomy site had closed completely. Conclusion:In patients with small macular holes that fail primary vitrectomy, nasal relaxing retinotomy can contribute to successful hole closure.

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